Adjustable socket wrench



Apr. 1o, 1923 AJ. C. SIBISKI ADJUSTABLE 'SOCKET WRENCH Filed Nov. 2, 1921 l appertains-tomake and Patented pr. 10, 1923.

, JOHN o.l srBIsKI, or BALTIMORE, ivrAnYLAN1:1.

j AnJUsTABLE soolKErwRENcH.

Applieatitizn filed November To' all zo/om t may concerti Be it known that 1,1 JOHN C. Srrsi'ii,- a citizen of the United States, residingv at Baltimore', in the city of' Baltimore ,and State of Maryland, have invented certain new and useful Improvements in Adjustable Socket WVrenches; and I do hereby declare the following to be a full, clear',`and exact description of the inventioin such asgwill enableothers skilled in the art to which it use the same.`

The invention relates vto wrenches of the socket type and aims to provide la tool of this character in which the socket is adjustable and adapted to clamp nuts'of different sizes and shapes within certain limits.

Other' objects and advantages will be apparent and suggest themselves as the nature vof the invention is understood.

While the drawings illustrate Van embodi- A ment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes 1n the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming apart of the specification,

Figure l is a central longitudinal section of a wrench embodying the invention.

Figure 2 isI a side view thereof.

Figure` 3 is a view of the wrench as seen from the upper end.

Figure 4 is' aview of the wrench as seen from the lower end. and y Figure 5 is aplanview of the paddle A,for adjusting and operating the wrench.

Corresponding and like parts are referred to in the following description and designated in the'several views of the drawings by like reference characters.

The tool comprises an elongated socket-5 of rectangular form in transverse section. The upper end of the socket 5 is reduced and of polygonal form as indicated at to receive a suitable handle as indicated in Figure 5 for rotation of the wrench when in operation. Two sides of the so-cket are appro'Ximately parallel' and the other two sides have their end portion oppositely inclined as indicated most clearly in Figure 1.` The inclined sides of the socket have their lower portions reversely inclined whereby to effect an opening or a closing ofthe jaws as the preferably cutaway toeirpose the upper ends ofthe jaws and the portionsofltlie nut' in engagement therewith. j Y j Similar or like jaws 3 lare mounted within the socket'5 randtheir gripping ends are offset and pro'ect beyond the socket and are depressed'upon their" inner sides so as to engage adjacent facesof a vnut or like parts antlf'prfevent' slipping.' lThe grippingk faces kof thejaws are toothedfory corrugated `to insu-re positivejengagernen-t with the nutjor other part tobe turned and pre-vent possible slipping. The outer facesofthe 4upper end portion of theljaws 3 areoppositely inclined to conform tothe inclinationy of thehupper; portions of the inclinedv side walls of the socket', Ain expansible helical springt) is interposed between the jaws f3 and normally serves to 'press the same apart yand holditheir .3 effect a closing thereof and inward moveyment of the jaws causes the same to open or separate. Figure l shows the jaws 3 kat the limit of their inward movement and open to a maximum extent.

A nut l is disposed within the upper end 'of the socket 5 and has opposed studs 4 ywhich enter openings formed in the upper ends of the jaws 3 whereby the nuts and jaws move together. A screw 2 tive relation with the nut l has its upper end reduced and passed through formed in the upper end of the socket 5. the projecting end receiving a cap 8 which is secured thereto by means of a pin 9. The upper end of the socket 5 is confined between the cap 8 and the shoulder formed at the base of the reduced end ofthe screw 2 thereby forming in effect a swivel joint, whereby the screw 2 may against longitudinal movement. or like parts is of polygonal form a handle or operating screw 2 may be rotated,

The handle disclosed' in Figure 5 is provided with a middle and an end opening l() to fit the polygonal end 7 of the socket 5 whereby the wrench may be rotated when in service. The handle is kalso provided with an opening 1l to receive the polygonal cap 8 applied to the projecting end of the screw 2 van opening` rotate freely while it is held in cooperawhereby the latter may be rotated to elect longitudinalmovement of the nut l and the jaws 3 in engagement therewith. Outward movement of the jaws `3 cause them to ride upon the` opposed vreverselyr inclined portions of the socket 5 with the result that said jaws are pressed together to grip a smaller size nut or like part to be turned. The wrench may be adjusted so as to grip the part to be turned and thereby prevent possible displacemen. After the wrench has been adjusted to the'work it is rotated by means of the operating handle or equivalent part applied to the polygonal end 7` of the socket.

Bolts 4? whichhave yenlarged heads and which are threaded into the studs 4,are emp plo ed to prevent the jaws?) from becoming accidentally disconnectedfrom the studs 4.

1. A device of the class described including a hollow socket having side walls, the sides of the socket being 'open between said walls and the top wall of the socket, a screw journaled in saidl top wall, a head on said screw exteriorly of the socket and resting on 4the top wall, a nut Within the socket` jaws within the socket in engagement with and for which saidsides of the socket constitute' guides, they jaws having openings socket and resting on said first mentioned head, a nut within the socket and extending into the lfirst mentionedhead, jaws within the rsocket in engagement with lsaid inclined sides, means to urge separationof the jaws at their gripping ends, the jaws having openings therethrough, projections on the nut extending into` said openings, and detachable Jastenings applicable to said projections through `the spaces of the socket above the inclined sides.

In testilnony'whereof I affix my signature in presence of two witnesses.

JOHN SIBSKI.

Witnesses o j t qWILLIAM J JONES. Sr.,

H. B. SHIPLEY. 

